#color-name {
  font-family: 'LXGW WenKai';
  position: absolute;
  font-size: calc(100px + 5vw);
  right: 0;
  top: 0;
  color: rgba(0, 0, 0, 0.1);
  opacity: 1;
  writing-mode: vertical-rl;
  white-space: nowrap;
  transform: translate(10%, -5%);

  &.fadeout {
    opacity: 0;
    animation: fadeOut 5s ease;
  }
}

@keyframes fadeOut {
  0% {
    opacity: 1;
  }
  50% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
